Approaches to the study of the evanescent field of terahertz surface plasmon polaritons at the Novosibirsk free electron laser

V. D. Kukotenko; V. V. Gerasimov

doi:10.1117/12.2687472

26 November 2023 Approaches to the study of the evanescent field of terahertz surface plasmon polaritons at the Novosibirsk free electron laser

V. D. Kukotenko, V. V. Gerasimov

Author Affiliations +

Proceedings Volume 12776, Infrared, Millimeter-Wave, and Terahertz Technologies X; 1277607 (2023) https://doi.org/10.1117/12.2687472
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

Currently, in photonic integrated circuits, the circuit size is limited by diffraction, which acts as a barrier to further development in the field of optical communications. Plasmonics could potentially address this size mismatch between electronic and photonic components. Photonics and plasmonics can complement each other, given the appropriate conditions, allowing optical signals to be converted into surface plasmon-polaritons (SPPs) and vice versa. Therefore, plasmonic integrated planar circuits for wireless communication devices are actively being developed. Transitioning to the terahertz (THz) frequency range will enhance data transmission and processing speed. In the development of plasmonic integrated circuits, understanding the optical properties of surfaces is crucial. Current methods for determining the optical properties of surfaces in the THz frequency range lack sufficient sensitivity to transitional surface layers of metal and films that are much thinner than the optical wavelength. This work will demonstrate experimental methods for measuring the penetration depth of the SPP field into the air. Through these methods, and utilizing other plasmonic refractometric characteristics, it is possible to reconstruct the effective surface dielectric permittivity of the metal.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

V. D. Kukotenko and V. V. Gerasimov "Approaches to the study of the evanescent field of terahertz surface plasmon polaritons at the Novosibirsk free electron laser", Proc. SPIE 12776, Infrared, Millimeter-Wave, and Terahertz Technologies X, 1277607 (26 November 2023); https://doi.org/10.1117/12.2687472

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